CGM - 380 high-strength non-shrink grout material performance metrics

CGM - CGM high-strength non-shrinkage grouting material performance index - 380 CGM - superfine grouting material technical indicators 380 fluidity ( mm) The initial value of 380 or higher 30 min retention value of 340 or higher flow cone method ( S) The initial value of 12 ~ 18 s 30 min retention value 12 ~ 18 s vertical expansion ratio ( %) 3 h 0。 1 to 3. 5 for 24 h and 3 h expansion value of 0. 02 ~ 0. The compressive strength (5 MPa) 40 * 40 * 160 mm compared 2 h / 1 d 20 or more 3 d 28 d 60 exudation rate (or 40 or higher %) Chlorine ion content (0 %) ≤ 0. No material usage (06 effect on reinforcement rustily kg/m3) 1800 the construction time ( min) 45 the lowest temperature ( ℃) 5